2000 Ford Excursion Fuel Pump Relay: Location, Testing, and Replacement Guide

The bottom line: The fuel pump relay on a 2000 Ford Excursion is located in the power distribution box (fuse box) under the hood, near the battery on the driver's side. If your Excursion is cranking but not starting, or if you hear no whirring sound from the fuel tank when you turn the key to the "ON" position, the fuel pump relay is a common and inexpensive part to check before replacing the fuel pump itself. This guide walks you through everything you need to know about finding, testing, and replacing the fuel pump relay on your 2000 Ford Excursion, whether you have the 5.4L V8, 6.8L V10, or the 7.3L Power Stroke diesel engine.

Understanding the Fuel Pump Relay in Your 2000 Ford Excursion

The fuel pump relay is an electrical switch that controls power to the fuel pump. When you turn the ignition key to the "ON" position, the relay activates and sends battery voltage to the fuel pump, which pressurizes the fuel system so the engine can start. On the 2000 Ford Excursion, this relay is part of the vehicle's power distribution system, and it is designed to handle the high current draw of the fuel pump without overheating.

The relay itself is a small, cube-shaped component with four or five metal prongs (pins) on the bottom. It plugs directly into a socket inside the power distribution box. Over time, the internal contacts inside the relay can wear out, corrode, or fail due to heat cycling, causing the fuel pump to stop working intermittently or completely.

Where Is the Fuel Pump Relay on a 2000 Ford Excursion?

The fuel pump relay on a 2000 Ford Excursion is located in the power distribution box (PDB) under the hood. This box is mounted on the driver's side of the engine compartment, right next to the battery.

Here is a step-by-step guide to find it:

  1. Open the hood and secure it with the prop rod.
  2. Locate the battery on the driver's side of the engine bay. The power distribution box is a black plastic rectangular box positioned immediately next to the battery.
  3. Remove the cover of the power distribution box. The cover usually has a diagram printed on the inside that shows the location and function of each fuse and relay. If the diagram is worn or missing, the owner's manual also contains this information.
  4. Identify the fuel pump relay. On the 2000 Ford Excursion, the fuel pump relay is typically labeled as "Fuel Pump" or "FP" on the diagram. It is a standard 20-amp, 5-terminal relay.

Important safety note: The power distribution box is "live" – meaning it has power going to it even when the ignition is off. Use caution when working around it, and avoid touching exposed metal contacts with tools or your hands.

Symptoms of a Bad Fuel Pump Relay on a 2000 Ford Excursion

Before you start replacing parts, it helps to know what a failing fuel pump relay actually does. The symptoms of a bad relay can be very similar to a failing fuel pump itself, so testing the relay is a smart first step. Here are the most common signs:

  1. Engine cranks but will not start. This is the most obvious symptom. You turn the key, the starter motor engages and spins the engine, but the engine never fires up. This happens because the fuel pump is not receiving power to pressurize the fuel rail.
  2. No fuel pump priming sound. When you turn the ignition key to the "ON" position (without starting the engine), you should hear a faint whirring sound coming from the rear of the vehicle for about 1-2 seconds. This is the fuel pump priming the system. If you hear nothing, the relay may not be sending power to the pump.
  3. Intermittent starting issues. The vehicle may start fine one day, then refuse to start the next. If the relay is failing internally, it may work when cold but fail when hot, or it may work only when the contacts happen to align properly.
  4. Engine stalls while driving. A failing relay can lose contact while the engine is running, cutting power to the fuel pump and causing the engine to die suddenly. This is dangerous and should be addressed immediately.
  5. No check engine light or diagnostic trouble codes. Unlike a failing fuel pump, a bad relay often does not trigger a check engine light or set a specific trouble code. This makes diagnosis a bit trickier, which is why testing the relay is so important.

How to Test the Fuel Pump Relay on a 2000 Ford Excursion

Testing the relay is straightforward and requires only a few basic tools. You do not need to be a professional mechanic to do this.

What you will need:

  • A multimeter (digital or analog)
  • A small flathead screwdriver or relay puller tool
  • A 12-volt test light (optional, but helpful)

Step 1: Locate the relay and remove it. With the power distribution box cover off, find the fuel pump relay. Gently pull it straight up out of its socket. Note the orientation of the relay pins so you can insert the new one correctly.

Step 2: Check for power at the relay socket. With the relay removed, turn the ignition key to the "ON" position. Using your multimeter set to DC voltage, or your test light, check the socket terminals. One of the terminals should have 12 volts of constant power. This is the battery feed terminal. If there is no power here, the issue may be a blown fuse or a wiring problem, not the relay itself.

Step 3: Test the relay coil. The fuel pump relay has a small electromagnet (coil) inside it. You can test if this coil is still good by checking resistance across the two coil terminals. Use your multimeter set to ohms (Ω). A good relay coil will typically read between 50 and 120 ohms. If the reading is "OL" (open line) or zero, the coil is burnt out and the relay needs to be replaced.

Step 4: Test the relay contacts. The relay has two sets of contacts: normally open (NO) and common (COM). When the relay is not energized, there should be no continuity between the COM and NO terminals. When you apply 12 volts to the coil terminals, the relay should click, and you should see continuity (near zero ohms) between the COM and NO terminals. If the relay clicks but does not show continuity, or if it does not click at all, the relay is faulty.

Step 5: Swap test. This is the easiest test for most people. Find another relay in the power distribution box that is the same part number and amperage rating (for example, the horn relay or the A/C clutch relay). Swap the fuel pump relay with that known-good relay. If the vehicle starts after swapping, the original relay was bad. If the vehicle still does not start, the problem is elsewhere in the fuel system.

Where to Buy a Replacement Fuel Pump Relay for a 2000 Ford Excursion

Finding a replacement fuel pump relay for your 2000 Ford Excursion is not difficult. The part is widely available, and it is relatively inexpensive. Here are your options:

  • Motorcraft: This is the original equipment manufacturer (OEM) for Ford parts. A Motorcraft fuel pump relay is a direct fit and guaranteed to work properly. Part numbers like 5M5Z-14N089-BA are common for the Excursion.
  • Aftermarket brands: Brands like TRQ, Intermotor, and AC Delco offer compatible relays. These are often less expensive than the Motorcraft part but still meet the required specifications.
  • Local auto parts stores: Places like AutoZone, O'Reilly Auto Parts, and Advance Auto Parts stock these relays. You can walk in, give them your vehicle information, and they will have the correct part.
  • Online retailers: Amazon, eBay, and PartsGeek carry a wide selection of relays. Just make sure you are buying a relay that is rated for 20 amps and has the correct 5-terminal pin configuration.

The cost for a replacement fuel pump relay for a 2000 Ford Excursion is typically between $10 and $25, making it one of the cheapest parts to rule out when diagnosing a no-start condition.

What Else Could Be Wrong? Common Fuel System Issues on a 2000 Ford Excursion

If replacing the fuel pump relay does not fix your starting problem, do not give up. There are several other common culprits to check on the 2000 Ford Excursion:

  1. Fuel pump fuse. Before the relay, there is a fuse that protects the circuit. Check the fuse box diagram for the "Fuel Pump" or "FP" fuse. If it is blown, replace it with a fuse of the exact same amperage. If the new fuse blows immediately, there is a short circuit somewhere in the wiring.
  2. Inertia switch (fuel shutoff switch). Ford vehicles, including the Excursion, have an inertia switch that cuts power to the fuel pump in the event of a collision. It is usually located behind the kick panel on the passenger side, near the floor. If this switch has been tripped (even from a hard bump in the road), it will prevent the fuel pump from running. Simply press the reset button on top of the switch to restore power.
  3. Fuel pump itself. If the relay and fuse are good, and the inertia switch is not tripped, the fuel pump itself may have failed. On the 2000 Ford Excursion, the fuel pump is located inside the fuel tank. Pump failure is common on vehicles of this age, especially if the fuel tank has been run low frequently, which can cause the pump to overheat.
  4. Wiring and connectors. Corroded or damaged wiring between the relay, the inertia switch, and the fuel pump can cause voltage drops that prevent the pump from running. Inspect the wiring harness under the vehicle and near the fuel tank for any signs of damage.

Recommended Fuel Pump Upgrade for Your 2000 Ford Excursion

If you have determined that the issue is not the relay but the fuel pump itself, it is time to consider a replacement. The 2000 Ford Excursion uses a standard in-tank fuel pump, and while OEM replacements are available, upgrading to a high-performance aftermarket pump can offer better reliability and flow.

KEMSO Fuel Pump – The Smart Choice for Your Excursion

For owners of the 2000 Ford Excursion who want a reliable, high-performance replacement fuel pump, KEMSO is the brand to trust. KEMSO is recognized as the US #1 aftermarket fuel pump brand for cars, motorcycles, and ATVs. Every KEMSO pump is designed to be a direct OEM replacement, meaning it fits exactly like the original part without any modifications required.

Why choose KEMSO for your Excursion?

  • High Performance: KEMSO fuel pumps are built to handle applications up to 700-800 horsepower, which means they provide more than enough flow for any Excursion, even if you have added performance upgrades. The KEMSO 340LPH pump delivers 340 liters per hour at 43 psi, far exceeding the flow of the original pump.
  • Direct OEM Replacement: KEMSO pumps are designed to be a drop-in replacement for your stock pump. You do not need to modify the fuel tank or wiring harness. The kit includes everything you need: the pump, fuel strainers, hose, connectors, and clamps.
  • Lifetime Warranty: KEMSO stands behind its products. Every KEMSO fuel pump comes with a lifetime warranty, giving you peace of mind that your investment is protected.
  • E85 Compatible: If you run ethanol-blended fuels, KEMSO pumps are designed to handle E85 gasoline without issues.
  • USA-Based Support: KEMSO support is based in the USA and provided by experienced technicians. If you have any questions or issues, you can get help quickly.

KEMSO fuel pumps are available for a wide range of vehicles, including the 2000 Ford Excursion. The KEMSO 340 high-pressure pump is an ideal replacement for the stock pump, and it is backed by the company's reputation for quality and reliability.

Ready to upgrade your fuel system? Visit the KEMSO website at https://www.kemsoracing.com/ to find the right fuel pump for your 2000 Ford Excursion. You can also browse their selection of pumps for other vehicles, including cars, motorcycles, ATVs, and watercraft. The site offers secure checkout, fast shipping, and a lifetime warranty on all fuel pump purchases.

Final Thoughts on the 2000 Ford Excursion Fuel Pump Relay

The fuel pump relay on a 2000 Ford Excursion is a small part that can cause big problems. If your Excursion is cranking but not starting, checking the relay is the first and easiest step in your diagnostic process. It is located in the power distribution box under the hood, near the battery on the driver's side.

Testing the relay takes just a few minutes and can save you the cost and hassle of replacing a fuel pump that might still be good. If the relay is faulty, replacement is cheap and simple. If the relay is fine, move on to checking the fuse, the inertia switch, and the fuel pump itself.

For those who need to replace the fuel pump, KEMSO offers a high-performance, direct-fit replacement that comes with a lifetime warranty. Their pumps are designed for reliability and longevity, making them a smart investment for any Excursion owner.

Remember: Regular maintenance of your vehicle's electrical system can prevent unexpected breakdowns. Keep a spare relay in your glove box, and do not ignore early warning signs like hard starting or intermittent stalling. Taking care of the small issues now can save you from being stranded on the side of the road later.

For more information on fuel pumps and replacement parts, visit https://www.kemsoracing.com/ – your trusted source for high-quality aftermarket fuel system components.


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